Vivekanada Yoga kendra is a very good yoga and meditation centre in Bangalore. I have attended the classes for around 3 months here and know the centre quite well.
The teachers are professionals and will give you advice on diet along with yoga. The people who came to the class were also friendly and I eventually made a few very good friends here.
I have taken classes for reducing weight as well as knee pain. People with various problems come here to learn yoga.
There are different aasanas for everybody depending on what exactly what you will need for.
They will first talk to you about your health history and if you have had any operations, respiratory problems, heart or any of the stuff and depending on that, they advice you and teach you aasanas.
It is a wonderful experience there. The fee is reasonable and the people are approachable.
I would surely recommend this place for learning yoga.